Panel-board for electrical-power distribution.



A. C. MQWILLIAMS. PANEL BOARD EUR BLEUTRIGAL POWER DISTRIBUTmN.

AYPLIGATION FILED S13I"I.30,1905E 920,490. Patentei Mag! 4, 1909.

2 SHEETS -EHEBT @Mmmm k A @MM/X@ A. C. MGWILLIAMS. PANEL BOARD FOR ELECTRICAL POWER DISTRBUTION. APPLICATION HLED SEPT. an, 1905.

920,490, Patented May 4, 1909.

2 SHEETS-SHEET 2.

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UNTTED STATES PATENT oFFroE.'

ARTHUR C. MCWILLIAMS, OF CHICAGO, ILLINOIS. 1

i PANEL-BOARD FOR ELECTRICAL-POWER DISTRIBUTION.

l Specification o! Letters Patent.

I Patented May 4, V1909.

Application mea september so, 1905. serial No. 2804102.,

for Electricalower Distribution, o f,whichl the following is a sY ecification. My invention 1e ates to systems-of elec- 410- .trical power distribution and panel boards 'for use "in connection therewith.

"The fobject of the invention 1S to facilitate the interchanging of the consumption circuits ywith the meter circuits so that any Vcon- ...15. r2 tofan'y meter and as many consumption circuits 'as desired'may be readily connected to Yonexmeter, y y' l t islsoanobjcctto provide a com act,

connection withlsu obtained'byfthe apparatus illustrated in 'theaccoinpanying drawings in which:

y-figure l apparatus and circults. Fig'. 2/is a front i View of a anel board embodying the invention, and 1`ig. 3 is a transverse sectonalview of theboard, on the line Fig. 2.

throughoutthe several `views.

The apparatus here illustrated is arranged for a three wire system although the inven tion is equally ap'plicable to a two .Wire system. The supply mains a, b, c, which are respectivcly positive, neutral and negative are 'adapted to be connected respectively to the positive, neutral and negative bus-bars d, f,

c, through theswitch g in the ordinary manner: @Q The parte are mounted on the board A ,whiclifrnay consist of marble suit-able insulating niaeria In Vthe draw- 'gs are shownsix pars lof meter circuit ffterminals h1, h, h", ht and h each one of -lli'yv'hich is adaptedato hI ve a Ameter, H cou- "nected thereto. One o f` each pair of said lterininals is connected to a main, the remain- ;.ing terminal being connected respectively to -one of the' stationary conductors i1, i2, i, Q 12,? fitwhicli in the present design are mounted @gon the back of boardA, and arranged verti- A third wirel H1 is shown to be connected from `the neutral bus bar f to`^the lilter H to furnish'a'shunt current for o'perating them in the customary manner.V

- "Arranged transyersely to the meter'circuit,

. as shown, or any other kind sumptioncircuit may be readily connected y econiriic'afl*rificterml panel board usab e in' c 'a system. ',Ihis object4 is a diagrammatic view of theA Similar .letters"referftosirhar 'parte or any other conductors il, i2, 13,12*, i", i are th consumption conductors x71, j, j, j,17' and j which 1n the resent deslgn are mounted horizontally on t ie front side of board A. Eachof these last mentioned conductors mounted on the -front of the board is arrangedto be -fusecoxmected to the adjacent terminal of a' c on sumption circuit b means of a shallow bind-4 ing screw o or ot er suitable device, which does not penetrate into the board or tothe bars f" or f". behind,4 but .merelyiholds' the fusefin contact with conductors 31,3" etc. Saidconsumption circuits may include lamps, ofload. Saidbars andffE are permanently mounted'on the hoard, preferably onthe back thereof and by p means of the plugs or screws m whic penetratezthe board, are adapted to be fuse-connected to the remaining .terminals of the airs of consumption circuit terminals k1, la', Je, 1: and le. Thus in each pair of consumption circuit terminals one xs connected by a penetrating plum to one of the mains, (the neutral o ne 1n t isinstanoe) while the remaining terminal is adapted to be permanently fuse-connectedby'means of a blnding screw oto one of the set of ermanent conaumption circuit conductors 1*, j', y, j, j or j. Bythe word permanen is meant suchparts as are intended to be'part of the apparatus itself in distinction to the Wirin or other parts that are intended to be altered to suit requirements for rearrangement of metering. `In consequence of the above, in each? meter circuit in this three wire design one-terminal of each pair of meter terminals is connected to 'eithenthe positive or negative suppl main and the other terminal is conneet to its respectlve conductor i? or i etc.;

while in each consumption circuitA one terminal is connected to the neutral sup ly main and the other terminal is connectedpto one of the conductors ji or j etc. Each one of the meter conductors, ,z'*"etc., crosses each one of the consumption conductors 72'11"l A ete., and therefore in order tocomplete the y circuitfthrough a metergand a consumption circuit it is only necessary to connect one of the conductors lz", or etc., with a conductor' j* or etc. Y lIn the present' case, provision 1s ma e for this by aperturing thehoard Aat the di'erent crossing points to receive'plugs screwsn', n, as best showninli" 3.- l n operation, suppose it isdesire hy @pow eeeeptioa. irren?, 1. waterbeheer emit.

.ln a similar manner any consumption cir- 'cuit may be readily connected to any meter,

ifrdas many consumption circuits as desired may be connected to any one meter. It will be no ted that no change of wiring of any kind is rcqiiir`ed, the entire operation consisting in simply `inse`rt-mgor removing oncffor more plugs as the case may be. This feature is of great advantagemin many types of power distribution, -for example in the lighting of oilice buildings where t e tenants have thein individual metersl and where on accon fifogf frequent rearrangements of ofce .'spce, frequent rearran ement-is required in inletering of the lig t circuits. 111s invention is equally applica-biete two wire systems and to power systems having a large number of consumption and meter circuits. The specific arrangement here shown may be considerably varied without de arting from the spirit of the invention, orvexainple, it is not essential that the consumption and meter circuit conductors be on opposite sides of the board norl cross at riglit angles to each other. Nor is ittessentialthat the consumption circuits be permanently connected to the neutral supply terminal as it is immaterial whether the current flowing from positive to neutra] first pass through the lneter or the consumption circuits.

By'refcrring to'the drawings it will be noted that one set of conductor bars is ar` i ranged alternately so that one bar leads to a te inal at onevedge of the\board while the nett adjacent bai-,leads to a terminal at the opposite edge of the board, It till also be noted that 1n thepreferred f rm thse terminals include fuses and switc ies. The advantage in this alternate arrangement. is

vthat it alords double the area for the-terto accommodate merely thehorizonta-l confV ductor bars; furthermore the vertical bars have'to be very long to enable them to cross all of the horizonta bars.' Byv my arrangement in whichfthe terminal connections are grouped symmetrically on two sides of the vertical bars and the horizontal bars are led to them alternately, first on one' side and thenon the other, the vertical hars are just about half as long as they would be if grou cd all on one side of the board.

lV at I claim as new and desire to secure by Letters Patent, is:

l. A metering panel board having crossed permanent conductors, the conductors runningl one Way being for the meter circuitsy and those running;r across them'being for the consumption circuits, said conductorsbeing adapted to he electrically connected at their points of crossing, yone set of conductor-s bemg arranged alternatelyso that .one conductor leads toward .one edgeof the board for connection to vits circuit `while the con-4 ductcs ou either sidethereof lead toward the opposite edge ofthe board for connec tion to their circuits. Y A l 2. A metering panel board having` parallel horiz/.enfui bars and parallel vertical bars crossingsr the horizontal ones, one'fset .of said bars beingr for the meter circuits an41 the other set for the consum tion circuits, said bars heine' adapted to e electrically connected et their point-s of crossing, the horizontal bars being connected' at their outer ends to their proper circuit terminalsi` and alternating with each other sothab" the connected end of one horizontal'nbii'rjeifo nearest to one vertical edge of the'boaidnd i thc connected end of the next adjacent hori.1

zontal bar is nearest to the opposite vertical edge of the board.

3. A metering panel boardhaving switchesarranged along the vertical edges" of the hom-cha conductor bar running horizontally'. inward from each of said switches and be. ing. arranged alternately so that one bar is associated with a switch at one edge. of the board and the adjacent bar is associated with a switch at the op osite edge of the board, and another set o bars arranged at an angle tothe first and having proper terminalconncctions, one of said sets of bars being` for the consumption circuits and the otherset .for the meter circuits, said bars being adapted for electrical connection at their intersections. Y

4. A tmetering panel board havingr two sets .of .parallel conductors arran ed at an angle tofieach other in different p anes and adapted to be electrically connected at their points of intersection, one set of bars bein associated withthe consumption .circuits an the other set with the meter circuits, the con# sumption icircuit bars being provided with switches and arranged alternately so that the rio switch' fortone consumption bar comes at one f area 'for the mountingof the consumption',

circuit switches. i 5. A metering papel board having parallel other bus liars on said'board connected conductors adapted for electrical connection to "ie consumption circuits. said parallel c ictois being;` arranged alternately so that one conductor leads toward one edge of the board while the Aadjacent conductor leads toward the opposite edge of thc boni-th. and other conductors adapted for electrical connection to the meter circuits` said meter conductors bein;lf iarallcl to cach other and arranged in a plane parallel to thc plane of thc consumption conductors. said conductors.' lieiugadaptcd fon'clectrical contact. at their intersections substantially in the manner and for the purpose described.

6. A syste'niof electrical power distribution includingr consumption circuits extending from districts` of consumption to a panel board, luis4 bars on said board connected ttrsaid consumption circuits, meter circuits,

io said meter circuits, .means for intercliangeably connecting thc bus bars associated with the consumption circuits with tli b tishars belonging to the mctcr circuits,A one o fglid setsl of bus liars being provided with terminals arranged along the two edges otheflioard, and connected totlieir bars alternately, substantially as described. Y 7. A system Aof electrical power distribution including consumption circ`uits extending from districts of consumption to a panel board, bus bars on said board connected to said cons miipton circuits, meter circuits, other bits bars on said board connected to said meter circuits, means for intercliange-4 ably connecting the busbars associated with the consumption circuits with the bus bars belonging to the meter circuits, terminal switches for the consumption circuits arranged along,r the two vertical edges of the board, half of said switches being arranged at one side and half at the other side and connected alternately Ato their hns liars for thc purpose described. l H. A systcni of electrical power distrital tion including consumption circuits extruding from districts of consumption to a panel board, biis'bars on said board connected to said consumption circuits, meter circuits, other bus liars on said board angularlv disposed with respect to the first bars, and c0n nectcd to said meter circuits, the bus 'oars being aperrui'ed at their intersections, plugs.

nectcc to the bars -alteriiatcly substaiitiall)r as described. f

l t). A panclboard having fuses arranged along the vertical edtesof the board, a conductor liar runnina horizontally inward from cach of said fuses and beingarranged alternately so that. one liar is associated with a fuse at oneedge of tli'e board andthe adjacent bar is associated witli'a fuse at the opposite edge of the board, and another set of barsarranged at an angle tothe first and havingproper terminal connections, one ofA said sets of bars being for the consumption circuits and the other setffor the meter circuits` said bars 'being adapted for electrical connection' at their intersections.

11.(2. In a metering panel board, a set 0f meter circuit. conductors Aand a set of con;

sumptioir circuit conductors, the barsof one setsgbeing arranged atanv angleto the bars oi the other set and said bars beingaida ted to' be interchangrealily 4connected at t eir points of intersection, o'ne set of bars being provided with terminals"soarranged that adjacei'it -bars are associatedavith terminals on opposite sides of the. board.

4.ln witness whereof, l have hereunto substiribed my name in the presence of t'wo wit- HCSSS.

Alt'll-IUR C. MGWILLIAMS. titties-ses:

How/tim M. (lox,

Du'iuirr l. Citi-zuren. 

